<template>
    <div>
        <!-- 面包屑导航区 -->
        <el-breadcrumb separator="/">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>商品管理</el-breadcrumb-item>
            <el-breadcrumb-item>分类参数</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图区域 -->
        <el-card>
            <!-- 搜索和添加区域 -->
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入搜索内容" v-model="queryInfo.query" clearable @clear="getGoodsList" @keyup.enter.native="getGoodsList">
                        <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="goAddPage">添加商品</el-button>
                </el-col>
            </el-row>
            <!-- 商品列表区域 -->
            <el-table :data="goodslist" border strip>
                <el-table-column type="index"></el-table-column>
                <el-table-column label="商品" prop="goods_name"></el-table-column>
                <el-table-column label="售价(元)" prop="goods_price" width="80px"></el-table-column>
                <el-table-column label="重量" prop="goods_weight" width="70px"></el-table-column>
                <el-table-column label="添加时间" prop="add_time" width="150px">
                    <template slot-scope="scope">{{scope.row.add_time | dateFormat}}</template>
                </el-table-column>
                <el-table-column label="操作" width="130px">
                    <template slot-scope="scope">
                        <!--<el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.goods_id)"></el-button>-->
                        <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeGoodById(scope.row.goods_id)"></el-button>
                    </template>
                </el-table-column>
            </el-table>
            <!-- 分页区域 -->
            <el-pagination
                    @size-change="handleSizeChange"
                    @current-change="handleCurrentChange"
                    :current-page="queryInfo.pagenum"
                    :page-sizes="[10, 30, 50, 100]"
                    :page-size="queryInfo.pagesize"
                    layout="total, sizes, prev, pager, next, jumper"
                    :total="total">
            </el-pagination>
        </el-card>
    </div>
</template>

<script>
export default {
  data () {
    return {
      // 获取商品列表的参数对象
      queryInfo: {
        query: '',
        // 当前页数
        pagenum: 1,
        // 当前每页显示多少数据
        pagesize: 30
      },
      // 商品列表
      goodslist: [],
      // 数据总量
      total: 0
    }
  },
  created () {
    this.getGoodsList()
  },
  methods: {
    // 获取商品列表
    async getGoodsList () {
      const { data: res } = await this.$http.get('goods', { params: this.queryInfo })
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      console.log(res.data)
      this.goodslist = res.data.goods
      this.total = res.data.total
    },
    // 监听 每页显示条数 改变的事件
    handleSizeChange (newSize) {
      // console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    // 监听 页码值 改变的事件
    handleCurrentChange (newPage) {
      // console.log(newPage)
      this.queryInfo.pagenum = newPage
      this.getGoodsList()
    },
    // 删除商品
    async removeGoodById (goodId) {
      const confirmResult = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (confirmResult !== 'confirm') return this.$message.info('已取消删除')
      const { data: res } = await this.$http.delete('goods/' + goodId)
      if (res.meta.status !== 200) return this.$message.error('删除商品失败')
      this.$message.success('已删除该商品')
      await this.getGoodsList()
    },
    // 点击添加商品按钮，跳转到添加商品的页面
    goAddPage () {
      this.$router.push('/goods/add')
    }
  }
}
</script>

<style scoped>

</style>
